Fast charging medical oxygen dispenser

Claim 1

In a fast charging and slow dispensing valve for a gas under pressure, said valve communicating with a storage space for said pressurized gas, said storage space being contained in a hollow sphere having a neck portion that is at least partially threaded, said valve comprising a valve housing having a bore including a chamber adjacent said storage space, said valve housing being threadedly engaged in said neck portion, said bore being formed in a dispensing end of said valve housing remote from said storage space, said bore extending through said housing and into said chamber which communicates with said storage space, a fixed valve seat formed in said chamber, said valve seat having an inclined inner surface so shaped to open away from said dispensing end of said bore, and a freely movable valve body positioned in said chamber between said valve seat and said space, said valve body having an extremely small dispensing opening of 0.003 to 0.004 inches in diameter which normally allows said gas to pass outwardly from said storage space in a slow dispensing action when said valve body is in a normal position nesting within said valve seat with said valve body having an outer surface which conforms generally to the inner surface of said valve seat to form a seal between said surfaces in said normal position, said valve body also at times being urged to a retracted position during fast charging toward said storage space and away from said valve seat, said valve body also having an enlarged slot which is closed off when said valve body is in said normal position, but which communicates with said chamber and said storage space when said valve body is in said retracted position, said valve body being normally urged to said normal position by the pressure of said gas in said storage area, said valve body being urged to said retracted position during fast charging when superior gas pressure is applied in a direction toward said storage area whereby said storage space may be quickly charged with the gas, but wherein said Gas will be dispensed slowly at a controlled rate through said extremely small opening, and a spring loaded valve pin covering the outer end of said bore such that when said pin is depressed to open position for dispensing purposes, said bore is in communication with the atmosphere.